William w



(No M od el.) i W. W. RICHARDSON. v

SAW HANDLE. I No. 275,414. Patented Apr. 10,1883.

WIT- 555: I VE D @ZL-Ay M v UNITED STATES PATENT OFFICE.

WILLIAM W. RICHARDSON, OF INDIANAPOLIS, INDIANA.

SAW- HANDLE.

SPECIFICATION forming part of Letters Patent No. 275,414, dated April10, 1883.

7 Application filed January 20, 1883. (No model.)

To all whom u may concern:

Be it known that I, WILLIAM W. RICHARD- soN, a citizen of the UnitedStates, residing at Indianapolis, in the county of Marion, State ofIndiana, have invented a new and useful Improvement in Attaching Handlesto Saws, of which the following is a specification, havin g reference tothe accompanying drawings.

My invention relates to that class of devices for attaching handles tocrosscut-sawsin'which the saw is secured to the handle by means of athumb nut and a threaded bolt passing through the handle and provided atone end with clamping-jaws which are adapted to engage a hole in thesaw-blade.

The object of my invention is to provide an improved means for holdingthe handle securely in different positions relatively to the saw-blade,and which shall be adapted to engage equally-well in different saws thehole usually found near, but at varying distances from, the end of acrosscut-saw blade.

My invention consists in the combination of parts hereinafter described,and particularly pointed out in the claim.

The accompanying drawings illustrate my invention.

Figure 1 isan elevation, showing the handle parallel with the blade.Fig. 2 is a plan, showing the handle at right angles with the blade.Fig. 3 is a horizontal section through Fig. 2. Fig. 4 is an enlargedelevation of the clamping-jaws. Fig. 5 is an enlarged plan and sideelevation of a washer. Fig. 6 is an enlarged elevation of the jaws whenopen, anda section of the clamping-collar. Fig. 7 is an end view of thecollar.

Like letters indicate thesame parts in all the figures.

a 12 represent jaws adapted to receive thesawblade cbetween them. Jawcis provided with a pin, (1, which passes through the hole usually madein a crosscut-saw blade, near the end,for the purpose of rivetin gahandle thereto. Jaw b may be connected atitslowerend to jaw a in anysuitable manner which will allow it to swing open therefrom sufficientlyto clear the end of pin 01, which projects from jaw afar enough to passthrough the saw and also through jaw b. I have here shown jaw 11connected with jaw a by means of a flat pin,e, projecting from a andentering a mortise, f, in jaw b; but I do not confine myself to thismanner of connection. Jaws a and b are rectangular in section where theyengage the saw, and for a short distance beyond, and when together, withthe saw between them, they fit nicelyinto a square hole, g, in a collar,I1, which has in its face grooves or notches i i s s, which are adaptedto receive the end of the saw-blade in different positions. Said jawsterminate in a cylindrical portion, j, which is extended to pass throughthe collar and the handle l, and is threaded to receive a thumb-nut, It.The base of collar his hollowed out in two directions at right angles toeach other, so that itmay set with grooves i r'or s 8 parallel with thehandle. For the purpose of more securely holding collar h in place onthe handle, pointed extensions m m, of which there may be two or more,are formed thereon. Said extensions pass through holes a a, provided forthem in a washer, o, and are embedded in the handle. Washer 0 isprovided with a central boss, 19, which enters a correspondingdepression in the base of the collar, and serves to keep the collarcentrally in place while being turned from one position to another.washer for the thumb-nut k. The handle I is provided with two holes, oneneartheend and the other about midway its length, in either of which theattachment may be placed.

The operation of my device is as follows: Washer o is placed on thehandle and collar it placed thereon. Jaws a and b are now r is a claspedtogether on the saw, pin (1 passing 8,- through the hole in thesaw-plate and jaw a.

The cylindrical threaded portion of the clamp is now thrust throughcollar h, its washer, the handle, and washer r, and the thumb-nut kscrewed on. The square portion ofthe clamping-jaws is now drawn downinto the square hole in collar it till the end of the saw-blade'eutersthe notches i r. or s s, and is drawn tight against the bottom thereof.

7 When it is desired to change the position of the handle in relation tothe saw-as, for instance, from the vertical position of Fig. 1 to thehorizontal position of Fig. 2--it may be done by releasing the thumb-nutanddrawing thejaws outward until their square portions are clear of thehole in the collar, and then turning them one-fourth round and replacing275,4lld

the nut; or the nut may he loosened only sufin the face thereof, and acentral square openticiently to allow the projections m m on the ingadapted to receive said jaws and to hold collar to be raised out of theholes in washer them together, and a nut, all combined with o, and thecollar itself,with thejaws and saweach other and with a saw-blade and ahandle,

5 blade, turned to the new position. in the manner and for the purposeset forth.

I claim as my invention-- T As a means for attachinga handle to a saw- IWILLIAM RIGHARDSOX blade, a pair ofjaws provided with apin adapt-Witnesses: ed to enter the saw-blade, and with a cylin- H. P. HOOD, 1odrical threaded shank, acollarhaving grooves FRANK A. JACOB.

